Clock



i motion is transmitted through the wheels 'muren sfrarss WILLIAM B.BARNES, OF FORESLVILLE, (QOXXFC'IICUT.

CLOCK.

Specification of Letters Patent No.

To all whom t may concern:

Be it known that I, WILLIAM B. BARNES, of Forestvlle, county ofHartford, and State of Connecticut, have invented certain new and usefulImprovements in the Construction and Arrangement of Clock-Movements; andI do hereby declare that the same is described and represented in thefollowing specication and drawings, and to enable others skilled in theart to make and use the same I will proceed to describe its constructionand operation, referring to the drawings, in which the same charactersindicate like parts in each of the ligures.

This improvement in clocks relates to a peculiar manner of constructingand arranging, of all, or nearly all, old parts in a new manner, and ina close compact form, having three pointers to indicate time, for apendulum clock.

In the accompanying drawings Figure l, shows the arrangement of theparts or movements complete. Fig. 2, is a sectional side view, showingthe manner of constructing the treble spindle for the pointers. Fig. 3,shows the escape wheel, the verge, and the detent arrangement, by whichthe uniformity and accuracy of the movement are secured.

cz are the plates or frame work of the clock movement, secured at theproper distance apart by the posts c, is the main spring which actuatesthe movement of the clock, and is secured upon the shaft with the lirstmoving wheel (Z. Said shaft is also provided with a pawl and ratchetwheel as in the ordinary way. The

(as ordinarily used in clocks) l, 2, 3, a, from the moving wheel Z tothe escape wheel e.

f, is the verge shaft.

g, is the verge.

z' is a stirrup extending out from the verge shaft and taking hold ofthe arm j, of the detent Z, is an arm extending downward from the vergeshaft j, having a stirrup on its lower end, in or through which thependulum rod m, passes, and by means of which, impulse is given to thependulum n.

It will be seen that when motion is given to the pendulum n, (after thespring c, is wound up) in the direction of the dart, that 30,558, datedNovember 6, 1860.

the pallet or repost 7L, of the verge g, is lifted out of the teeth 0,of the escape wheel c, and the detent 7a is dropped into the teeth bythe action of the stirrup 2', on its arm j. Thus the escape wheel e, (orits teeth 0,) acts only on one end of the verge or pallet it..Consequently it gives but a single impulse. rChe arm or stirrup I2',from the verge shaft acts on the arm of the detent 7u which allows it torest until the verge has moved far enough, so that the escape wheeltooth 0, will strike on the repose or pallet z. Then the detent 7c, ismoved from the tooth by the action of the stirrup and the tooth strikeson the repose and rests there until the pendulum returns. Then the toothslips olf from the repose onto the pallet which gives the impulse to thependulum. In this arrangement it will be seen that the triangular shapedteeth 0, of the escape wheel e are important in connection with theescapement, as the verge or repose I, about fills the space between theteeth, so as to prevent drop and loss of power. If the teeth werepointed and the verge or repose 71- illed at the point, it would bind.as it approached the center of the wheel. rI`he tooth is so shaped as toobviate thaY ditlicultyr and to give part of the impulse to the penduluma through the arm Z.

In Fig. 2, y) is the spindle on the outer end of which the seconds-handis secured, so as to allow it to be of such length, as to describe thewhole surface of the dial. One end of said spindle takes its bearing inthe back plate a, the front end passes through the socket spindle fr,which has its (the spinble r) bearing in the front plate a, and isdriven by the gear e, ust back of the front plate and moves the minutehand or pointer z5, and the socket spindle g, takes its bearing on thespindle fr, and is driven by a gear just outside of the front plate, andmoves the hour pointer u. By this arrangement I am enabled to make acheaper handsomer and reliable pendulum clock, and in a more compactform, and so as to indicate on a dial the hour minute and second oftime.

I believe I have described the construction and arrangementof myimprovement so as to enable a person skilled to make the same, and alsothe advantage derived there from.

Vhat I claim therefore and desire to Sedles, and gearngattached thereto,Substancure by Letters Patent stally as, and for the purpose described.

l. The arrangement of the Veroe g detent 7e triangular Shaped escapeWheeD teeth 0 n XVM B' BARNES 5 combination with a pendulum n Substan-NTltnesses:

tally as and for the purpose described. EDWARD XV. BLISS,

2. The arrangement of the pointer Spnl JEREMY W. BLISS.

